New build, is my old PSU ok?

[soggy jogger]

Thanks in advance!

I'm upgrading my system (finally), and planning out my build. I'm curious if I need to buy a new power supply, or if my current one will suffice (in which case I can throw that money elsewhere in the build).

Will be used for gaming, lightroom/photoshop/premiere, and [insert general non-intensive PC time-wasting activity here]. Open to the idea of overclocking, but wouldn't be going nuts. No plans to crossfire/sli.

Current PSU is a CoolerMaster Real Power Pro 750W (specs at bottom). Has been running fine for 3 years.

Proposed specs of new rig (narrowed it down but still deciding on a few things):
CPU: i5 3570k
GPU: HD7950 or GTX660 (or something in this ~300 range)
MB: ASUS P8Z77-V LK or Gigabyte UD3H
SSD: Samsung 840 Pro 128gb or Samsung 840 250gb
HDD: whatever i can get a deal on in the ~1TB range, plus maybe an old drive for backup
RAM: G.Skill Ripjaws X 2x8 1600

other components
ASUS blu-ray burner
ASUS PCIe-N15 network card
ASUS Xonar DX sound card (maybe)


So, will my old PSU work fine? Or do I need a new one? Is this due to new efficiency improvements, needing additional power, or something else?
IF I need a new one, what power level do I need?

Also open to general comments on proposed build.

Thanks!

CoolerMaster stats:
Model RS-750-ACAA-A1
Safety Nemko / TUV / cUL / CE / BSMI / FCC / CCC / C-tick / GOST
Certification nVIDIA SLI / 80 Plus
Type ATX Form Factor 12V V2.3 / SSI Standard EPS 12V V2.91
Dimension (W / H / D) Standard ATX 150 x 150 x 86 mm
Efficiency 86%(150W) / 86%(375W) / 81%(750W)
Hold Up Time >17ms
Input Current 12A @ 115 Vac / 6.3A @ 230 Vac
Input Frequency Range 47~63 Hz
Input Voltage 90~264V (Auto Range)
Max. Output Capacity 900 Watts
MTBF >100,000 hrs
Operation Temperature 0~40? (Nominal Input Voltage)
Output Capacity 750 Watts Continuous
PFC Active PFC (0.99)
Power Good Signal 100~500 ms
Protection OVP / UVP / OTP / OCP / OLP / OPP / SCP
Fan 120 mm fan with intelligent speed controller
Connector M/B 24 Pin x 1
CPU 4 Pin x 1
CPU 8 Pin x 1
PCI-E 8 Pin x 2
PCI-E 6 Pin x 2
4 Pin Peripheral x 5
SATA x 6
4 Pin Floppy x 1
Warranty 5 years

 

[logainofhades]

Yea that power supply will be fine still with your new hardware.

 

[toyftw]

Yea that power supply will be fine still with your new hardware.

^ +1 - agree & you have one of the very few Coolermaster PSU models
that can have the word "good" attached

 

[soggy jogger]

Yea that power supply will be fine still with your new hardware.

Great, thanks!

 

[soggy jogger]

^ +1 - agree & you have one of the very few Coolermaster PSU models
that can have the word "good" attached

Terrific, thank you. I spent a little extra on it back in the day in hopes to futureproof some, glad to see that in this case it actually worked out.